Lime calciner paint liner and forming method thereof

A calciner and coating technology, applied in the field of lime calciner lining body and its molding, can solve the problems of difficult construction quality assurance, troublesome repair work, long construction period, etc., and achieve simple molding method, efficient molding quality, and improved quality and the effect of service life

Active Publication Date: 2014-01-08
HUZHOU ZHEBAO METALLURGY AUX MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the structure of the lime calcination furnace is not a regular cylindrical shape, but a vase shape with a large middle and two small ends, the furnace body is divided into a preheating section, a calcination section and a cooling section from bottom to top, so the inner lining is built with

Method used

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  • Lime calciner paint liner and forming method thereof
  • Lime calciner paint liner and forming method thereof
  • Lime calciner paint liner and forming method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The thickness of the thermal insulation coating layer 2 is 80 mm, the thickness of the intermediate lining coating layer 3 is 250 mm, and the thickness of the working coating layer 4 is 450 mm.

[0028] The forming method of the inner lining body of the coating layer of the lime calciner comprises the following process steps:

[0029] 1. A number of paint anchors 5 are evenly distributed on the inner wall of the lime calciner shell. The length of the paint anchors 5 is slightly smaller than the total thickness of the lining of the lime calciner, and the paint anchor 7 corresponds to the thermal insulation coating layer in the length direction of the paint anchor 7. The thickness of the body 2 and the intermediate lining paint layer body 3 is provided with a marker 71, and the marker 71 of this embodiment is a connecting short rod perpendicular to the axial direction of the anchor 7;

[0030] 2. Clean the inner wall of the lime calciner shell to remove dust, rust, oil, e...

Embodiment 2

[0035] The thickness of the thermal insulation coating layer 2 is 70 mm, the thickness of the intermediate lining coating layer 3 is 230 mm, and the thickness of the working coating layer 4 is 380 mm.

[0036] The forming method of the inner lining body of the coating layer is basically the same as that of Example 1, except that in step 3, the component raw materials of the coating are first added to the mixer, and a small amount of water is sprayed into the mixer while stirring and mixing to pre-wet, so as to facilitate dust reduction in the working environment , Then the mixture that is fully mixed and less floating dust is added in the feed hopper of the pneumatic rotary spray gun, and all the other procedures are the same as in Example 1.

[0037] Example 3, a lime calciner, the furnace body is in the shape of a vase with a large middle and two small ends, with a height of 13m and a maximum inner diameter of 4m. A number of radial paint anchors 7 on the inner wall of the h...

Embodiment 3

[0038] The thickness of the above-mentioned thermal insulation coating layer 2 is 60 mm, and the thickness of the intermediate lining coating layer 3 plus the working coating layer 4 is 500 mm.

[0039] The forming method of the inner liner of the paint layer is the same as that in Example 2.

[0040] Example 4, the repair of partial damage to the inner lining of the coating layer of the lime calciner or the working layer of the inner lining formed by refractory casting. Specific steps:

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Abstract

The invention relates to a lime calciner paint liner and a forming method thereof. The lining comprises a thermal insulation layer, a middle lining layer and a working layer which are sequentially attached to the inner wall of the shell of the lime calciner, wherein the middle lining layer and the working layer are sequentially combined into an integral body and are respectively a paint layer according to a certain formula. The forming method comprises the following steps: thoroughly mixing the raw materials of the paint uniformly, adding into a feed hopper of a pneumatic rotary spray gun, sending the raw materials in the feed hopper into the spray gun by compressed air through a rubber tube, mixing the raw materials with high-pressure water in the spray gun to form a slurry, and spraying the slurry onto a construction working surface layer by layer. The invention provides a novel liner and a forming method thereof for the lime calciner, thereby greatly enhancing the forming efficiency of the lime calciner liner, lowering the production cost, greatly enhancing the quality of the lime calciner liner, and greatly prolonging the service life of the lime calciner liner; and the method can also be efficiently used for repairing local damage of a lime calciner paint liner or refractory cast-forming liner.

Description

technical field [0001] The invention relates to a lining body of a lime calciner composed of a coating layer and a forming method thereof. Background technique [0002] Existing lime calciners for producing quicklime usually consist of a shell and an inner lining. The inner lining is generally composed of a thermal insulation layer, an intermediate lining layer and a working layer. The thermal insulation layer is the outer layer of the inner lining and is connected to the inner wall of the shell. At present, the thermal insulation layer, intermediate lining layer and working layer of the inner lining are basically built on the inner wall of the furnace shell by using different refractory and thermal insulation materials, or adopt different unshaped refractory and thermal insulation materials to pass through The formwork is poured on the inner wall of the furnace shell in turn to form an integral inner lining. However, since the structure of the lime calcination furnace is n...

Claims

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Application Information

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IPC IPC(8): C04B2/10C04B35/66
Inventor 虞畅汪强严培忠程国庆张玉琴翁小燕费国荣费方冯杰
Owner HUZHOU ZHEBAO METALLURGY AUX MATERIALS
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